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Game Changer

Posted in Features on July 16, 2013
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MIM 7200 Photo 68809983

Author:Craig Perronne    Photos:Boyd Jaynes

When Dallas Luttrell and Bill Billington of TSA Motorsports made the decision that it was time to take their 7200 program to the next level, they went all in. Any thoughts of taking incremental steps in performance or capability were quickly and unceremoniously quashed. There would be no gradual evolution of a truck or slow and carefully plotted increases in speed. Instead, TSA Motorsports decided to create a very radical, no-holds-barred racer that would be at the top of the food chain of the constantly evolving and ultra-competitive 7200 class. To accomplish this, they turned to Camburg Engineering for the design and building of the truck. With very few rules governing the construction of a 7200, Camburg started with a clean slate and was free to unleash its engineering prowess. “Class 7200s are basically unlimited mini-trucks. The only limitations in the class are an 85-inch track width and a V6 engine. Other than that the class is open, so truly this vehicle is a Trophy-Truck with a V6 engine,” explains Camburg Engineering’s Jason Campbell. Camburg Engineering set out with the goal of building a truck that combined the important and often elusive elements of being easy to drive and prep while still one-upping the competition. “This 7200 truck that we built has a lot of advantages over current trucks, mainly because we took the concept of a Trophy-Truck and scaled it down. Most 7200s aren’t really done that way, I think they are built a little bit too small and too light,” shares Campbell. “This truck has a significant amount of wheel travel in the rear, especially up travel. Its wheelbase is a bit longer than most 7200s. We really focused on weight, some trucks are lighter, but I didn’t want to sacrifice safety and durability for weight. We are in the ballpark on weight, our wheel travel is significantly more and I think our front end geometry is quite a bit better in terms of overall handling.” To match the engineering and design found in the 7200 and give it even more of an advantage, TSA Motorsports decided to outfit it with every high-end part imaginable. “Besides everything we did at Camburg, TSA Motorsports took it to the nth degree with all the Motec electronics, the Kroyer race engine and the GearWorks transmission and differential. They went with all high-end plumbing with the Hydraflow clamps that are typically used on aircraft. Everything on the truck is literally the best of the best on top of everything we did,” notes Campbell. With the beautiful build quality and engineering, combined with components that are usually found in only the top of the Trophy-Truck class, the Camburg Engineering TSA Motorsports 7200 is indeed a game changer. Proving that it is indeed a very capable platform, Bill and Dallas piloted it to a first in class and an amazing sixth overall at its debut race at the SNORE Motion Tire 300. Let’s take a closer look at this radical 7200 in this month’s Masterpiece In Metal.

MIM 7200 2 Photo 67320961

The extremely stout Camburg Engineering front arms cycle to 24 inches of wheel travel, controlled via a Fox Racing Shox 2.5 coilover along with a Fox 3.5 five-tube bypass shock. A Howe Trophy-Truck rack with six inches of throw attaches to the Camburg-built spindles and steers the 7200. At the outer edge of the suspension is found a Camburg KINETIK hub along with Wilwood 13-inch rotors squeezed on by Baer six-piston calipers.

Found in the rear of the TSA Motorsports 7200 is a Camburg Engineering-built KINETIK four-link crafted from heat-treated 4130 that offers over 30 inches of wheel movement. Hidden behind the laser-cut aluminum panels is another Fox Racing Shox 2.5 coilover and 3.5 five-tube bypass shock. A Fox hydraulic bump stop is also employed to slow the Camburg KINETIK TT housing that is filled with 36-spline GearWorks axle shafts along with a GearWorks spool. A slightly larger 3.5-inch KINETIK hub is used in the rear, while the brake package is identical to the front with 13-inch rotors and six-piston Baer calipers offering massive stopping power.

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Safely secured inside a Cobra Technology carbon fiber seat with MasterCraft Safety harnesses, the driver interacts with the 7200 racer through a Momo steering wheel and Winters shifter. Dual Motec digital displays are housed inside the Scott Kell-built dash, and are used to monitor every parameter imaginable. Twin Motec RaceGrade Motorsports Keypads are also visible in place of the usual slew of switches for a very clean look. On the co-drivers side is found a Lowrance HDS-8M GPS unit along with a Kenwood race radio and PCI intercom system. The knob visible on the far left lets the driver change brake bias on the fly.

MIM 7200 5 Photo 68810112

Powering the TSA Motorsports is an exotic Kroyer Racing Engines-built 5.2L V6 engine with a Kroyer Six Stack fuel injection system. Controlled by a Motec M800 ECU, the monstrous V6 puts out over 550 horsepower and 400 lb-ft of torque after thorough and secretive internal massaging by Kroyer. Also visible in the photo are the hand-built RPM headers equipped with lambda sensors that eventually dump into a Magnaflow exhaust. The trick intake box was also built by Kroyer, and uses K&N filters buried inside of it. Out of view and resting behind the engine is a GearWorks-built Turbo 400 three-speed automatic.

MIM 7200 6 Photo 67320964

The Camburg fiberglass 7200 body covers the 37x12.50R17 BFGoodrich Baja T/As on 17x8.5-inch TrailReady forged beadlocks. Also visible from this angle is the mid-fueling location, which allows for ideal weight distribution so that the handling does not change drastically as fuel burns off. Tucked behind the front grill are three KC HiLites LED light bars, while an additional LED light bar can be affixed to the top of the cab. Full of gas, spares and ready to race, the TSA Motorsports 7200 weighs in at 4,900 lbs.

MIM 7200 7 Photo 68810115

MIM 7200 8 Photo 68810118

POWERTRAIN Engine: Chevy 5.2L V6 BUILDER: Kroyer Racing Engines MAX Horsepower: 550 horsepower MAX Torque: 400 lb-ft
MODIFICATIONS: Kroyer aluminum block, heads and internals INDUCTION: Kroyer-built intake system with K&N air filters, Kroyer Six Stack fuel injection system with Motec controller TRANSMISSION: GearWorks Turbo 400 three-speed automatic

SUSPENSION: Front: Camburg Engineering KINETIK dual A-Arms, hubs and spindles, Fox Racing Shox 2.5 coilovers and 3.5 five-tube bypass shocks, 24 inches of wheel travel REAR: Camburg Engineering KINETIK four-link with Fox Racing Shox 2.5 coilovers and 3.5 five-tube bypass shocks, Fox Racing Shox hydraulic bump stops, 30 inches of wheel travel COOLING: CBR radiator and coolers PLUMBING: Camburg Engineering with XRP and Hydraflow products WIRING: MOTEC with dual PDMs BRAKES: Front: Wilwood 13-inch rotors with Baer six-piston calipers REAR: Wilwood 13-inch rotors with Baer six-piston calipers WHEELS/TIRES: WHEELS: TrailReady 17x8.5 beadlocks TIRES: BFGoodrich 37x12.50R17 Baja T/As

BODYWORK: Camburg Engineering Class 7200 fiberglass body PAINT: TSA Motorsports INTERIOR: Cobra Technology carbon fiber seats, MasterCraft Safety harnesses, Momo steering wheel, Winters shifter, Motec digital displays, PCI intercom system, Kenwood race radio, Motec RaceGrade Motorsports Keypads CHASSIS: TSA Motorsports Camburg Engineering 7200 DIMENSIONS: Wheelbase: 124 inches Overall Length: 220 inches Overall Height: 68 inches Track Width: 85 inches Overall Weight: 4,900 lbs.

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MIM 7200 11 199x300 Photo 67320979 MIM-7200_11

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